CA2404677A1 - Device for blocking a safety brake for lift - Google Patents
Device for blocking a safety brake for lift Download PDFInfo
- Publication number
- CA2404677A1 CA2404677A1 CA002404677A CA2404677A CA2404677A1 CA 2404677 A1 CA2404677 A1 CA 2404677A1 CA 002404677 A CA002404677 A CA 002404677A CA 2404677 A CA2404677 A CA 2404677A CA 2404677 A1 CA2404677 A1 CA 2404677A1
- Authority
- CA
- Canada
- Prior art keywords
- lift
- safety brake
- blocking
- lift cage
- blocks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Abstract
In this lift equipment a lift cage (2) is on the way down, wherein a halt at the bottom storey is scheduled. If the lift cage (2) does not halt at the bottom storey according to plan, the lift cage (2) in its further travel is caught by buffers (26). In that case a safety brake (16) can be tripped due to the inertia of a speed limiter (13) and a limiter cable (19). So that the undesired tripping of the safety brake (16) can be avoided in the case of buffer travel, there is provided in the lift shaft (1) a blocking element (27) which blocks the movement of a blocking lever (25) as soon as the lift cage (2) has gone down past the bottom storey.
The blocked blocking lever (25) blocks one double lever (14) and, by way of a linkage (18), the other double lever (14). Tripping of the safety brake (16) is thus precluded.
The blocked blocking lever (25) blocks one double lever (14) and, by way of a linkage (18), the other double lever (14). Tripping of the safety brake (16) is thus precluded.
Claims (3)
1. Lift equipment with a lift cage movable in a lift shaft and with a counterweight movable in the lift shaft, wherein the speed of the lift cage or the counterweight is monitored by means of a speed limiter device and the speed limiter device stops the lift cage or the counterweight by means of a safety brake when excess speed of the lift cage or the counterweight occurs, characterised in that a blocking device is provided which blocks the safety brake in the case of a buffer travel of the lift cage or the counterweight.
2. Method according to claim 1, characterised in that at least one blocking element is arranged in the lift shaft and blocks the movement of a blocking lever connected with a trip lever mechanism of the safety brake.
3. Method according to claim 1 or 2, characterised in that the blocking element has a curved track which at one end enables the movement of the blocking lever and at the other end blocks the movement of the blocking lever.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01810946 | 2001-09-28 | ||
| EP01810946.2 | 2001-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2404677A1 true CA2404677A1 (en) | 2003-03-28 |
| CA2404677C CA2404677C (en) | 2010-07-20 |
Family
ID=8184166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2404677A Expired - Fee Related CA2404677C (en) | 2001-09-28 | 2002-09-24 | Device for blocking a safety brake for lift |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6805223B2 (en) |
| JP (1) | JP2003104647A (en) |
| CN (1) | CN1216784C (en) |
| AT (1) | ATE310704T1 (en) |
| CA (1) | CA2404677C (en) |
| DE (1) | DE50205013D1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8302739B2 (en) * | 2007-01-05 | 2012-11-06 | Continental Teves Ag & Co. Ohg | Brake device for a lift car |
| CN101622185B (en) * | 2007-01-05 | 2014-07-16 | 因温特奥股份公司 | Lift car, and a method for holding and braking a lift car of this type |
| KR101450953B1 (en) * | 2008-07-11 | 2014-10-15 | 인벤티오 아게 | Catch device with an energy accumulator element |
| FI122064B (en) * | 2009-11-13 | 2011-08-15 | Kone Corp | Elevator and method for establishing a safe space |
| JP2012126558A (en) * | 2010-12-17 | 2012-07-05 | Hitachi Ltd | Apparatus for controlling elevator car |
| EP2840055B1 (en) * | 2013-08-22 | 2019-10-02 | KONE Corporation | A support apparatus for a hoisting machine car |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US249076A (en) * | 1881-11-01 | Elevator-stop | ||
| US700458A (en) * | 1901-10-16 | 1902-05-20 | Susanna B Trapp | Safety appliance for elevators. |
| US1581458A (en) | 1924-07-11 | 1926-04-20 | Otis Elevator Co | Elevator safety appliance |
| US1874754A (en) * | 1930-04-18 | 1932-08-30 | Westinghouse Electric & Mfg Co | Safety operation by buffer |
| US1923683A (en) * | 1930-05-01 | 1933-08-22 | Haughton Elevator And Machine | Safety device for elevators |
| US1932060A (en) * | 1930-05-31 | 1933-10-24 | Westinghouse Electric & Mfg Co | Fmergency-stop means for elevator cars and counterweights |
| JPS59118678A (en) | 1982-12-27 | 1984-07-09 | 三菱電機株式会社 | Elevator device |
| US5713434A (en) | 1995-07-07 | 1998-02-03 | Otis Elevator Company | Elevator safety system |
| US5806633A (en) * | 1995-12-22 | 1998-09-15 | Macuga; Henry J. | Elevator safety system incorporating false pit |
-
2002
- 2002-09-12 DE DE50205013T patent/DE50205013D1/en not_active Expired - Lifetime
- 2002-09-12 AT AT02020343T patent/ATE310704T1/en not_active IP Right Cessation
- 2002-09-13 JP JP2002267750A patent/JP2003104647A/en active Pending
- 2002-09-19 CN CN02142456XA patent/CN1216784C/en not_active Expired - Fee Related
- 2002-09-24 US US10/253,282 patent/US6805223B2/en not_active Expired - Fee Related
- 2002-09-24 CA CA2404677A patent/CA2404677C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003104647A (en) | 2003-04-09 |
| CA2404677C (en) | 2010-07-20 |
| ATE310704T1 (en) | 2005-12-15 |
| CN1216784C (en) | 2005-08-31 |
| DE50205013D1 (en) | 2005-12-29 |
| US6805223B2 (en) | 2004-10-19 |
| US20030062224A1 (en) | 2003-04-03 |
| CN1410337A (en) | 2003-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130924 |